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Rooting Samsung Galaxy S6 Edge SM-G9250

Discussion in 'Android Rooting' started by henk6036, Jun 7, 2020.

  1. henk6036

    henk6036 Lurker
    Thread Starter

    I have read multiple guides how to root android phones however it was without succes.

    I saw that you have to enable USB debugging and unlock OEM, however I dont have the option to unlock OEM on my phone.

    I downloaded many files including SDK with twrp.img/ Odin with twrp.tar? (is it the same as twrp.img?).

    So the first step is to install twrp on my phone. The first thing I did was using odin program. I added the twrp tar file on the AP section but it didnt work. On my phone it says: Installation failure. You need to unlock your device to install a custom OS. What do I need to do here?

    I also tried cmd command by clicking it in the SDK map containing the twrp.img of my model.

    I wrote adb devices to check whether there is an android phone connected to my PC -> I saw my phone on the cmd screen.
    Then I wrote adb reboot bootloader -> it rebooted my phone.
    Next, I wrote fastboot flash recovery twrp-3.1.0-0-zeroltezt.img -> it says waiting for any devices?

    Can someone help me? I have been stuck for 8 hours only to try to install twrp in my phone....
     


    #1 henk6036, Jun 7, 2020
    Last edited: Jun 7, 2020
  2. Jfalls63

    Jfalls63 Android Expert

    I think one of the first things you need to do is to enable Developer Options. Haven't fooled around with a Samsung phone in a while but you should be able to go to Software Information and find the Build Number. Tap on the Build Number 7 to 8 times in succession to enable Developer Options.
    After enabled, go to Settings and you should find Developer Options listed at the bottom. In Developer Options, you should find the toggle for OEM unlocking.
     
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  3. henk6036

    henk6036 Lurker
    Thread Starter

    I already did that. I was able to enable USB debugging but I couldnt see OEM.
     
  4. Jfalls63

    Jfalls63 Android Expert

    This is what I see on my Galaxy Tab S5e Screenshot_20200607-171707_Settings.jpg Screenshot_20200607-171707_Settings.jpg
     
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  5. henk6036

    henk6036 Lurker
    Thread Starter

    Yes but my Samsung Galaxy S6 Edge doesnt have that. There is no button to unlock OEM on my phone. It is missing.

    So I was wondering how to unlock bootloader before I can flash twrp.
     
  6. ocnbrze

    ocnbrze DON'T PANIC!!!!!!!!!

    you need to go to "about phone" and tap it 7-8 times to get to the developers option. once that is accomplished then you see the oem unlock option.

    https://gearallnews.com/how-to-unlock-the-bootloader-of-samsung-galaxy-s6-edge-2/
     
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  7. Jfalls63

    Jfalls63 Android Expert

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  8. henk6036

    henk6036 Lurker
    Thread Starter

    Thank you for the link. Indeed I bought my phone in Hong Kong.

    After downloading CROM services I was able to fix:Installation failure. You need to unlock your device to install a custom OS.

    Now I ran into a new problem. After flashing twrp, I was stuck in a bootloop. Eventually I saw a white flash followed by black screen. Booting normal and booting in recovery mode is not possible. The only thing I can do is to boot into download mode.
     
    #8 henk6036, Jun 8, 2020
    Last edited: Jun 8, 2020
  9. mikedt

    mikedt 你好

    Do you know if the version of TWRP you flashed was correct for the Hong Kong variant S6 Edge you've got there? Because S6 for China, including Hong Kong, uses Qualcomm Snapdragon SoC. Most other countries have Exynos SoC. and so most TWRP and other custom devs work with Exynos.
     
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  10. henk6036

    henk6036 Lurker
    Thread Starter

    I downloaded CPU Z to check which SoC I had. It says Exynos Octa 7420 not Qualcomm.

    How do I know which twrp file I need to select. I just went to twrp.me and selected the twrp file for samsung galaxy s6 edge -> China (SM-G9250) -> Primary Europe and then I see several twrp files but they didnt mention anything about twrp files specific for Exynos or Snapdragon.

    I was able to fix bootloop by flashing original firmware through odin. I tried to flash twrp again with an older twrp file but it keeps bootlooping my phone. Is there anyway to flash twrp?

    What about CF autoroot and then flashing twrp? Does it work that way? The reason why I want to install twrp is to install Magisk.
     
    #10 henk6036, Jun 8, 2020
    Last edited: Jun 8, 2020
  11. Jfalls63

    Jfalls63 Android Expert

  12. henk6036

    henk6036 Lurker
    Thread Starter

    Samsung Galaxy S6 Edge (bought in Hong Kong)
    SM-G9250
    Android version: 7.0 Nougat
    Baseband version: G9250ZTS2ERC1

    I downloaded Odin v3.13.1 and twrp-3.1.1-0-zeroltezt.img.tar (https://eu.dl.twrp.me/zeroltezt/)
    I also have CROM services APK installed because I had no standard OEM unlocking on the developer options.

    The post on your link is 5 years old. I dont know if this still applies for me.
     
    #12 henk6036, Jun 8, 2020
    Last edited: Jun 8, 2020
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  13. Jfalls63

    Jfalls63 Android Expert

    TWRP that they use in the link should still work regardless of Android version. The way they obtain root probably only works for 5.1.1
     
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  14. henk6036

    henk6036 Lurker
    Thread Starter

    Unfortunately, the google drive containing the twrp file is not there anymore. It is down.

    Is it possible to flash other S6 Edge firmware such as International GSM: SM-G925F on my phone and then download the twrp corresponding to that firmware?
    Perhaps that way I can go to the recovery mode of twrp.

    The problem now is that flashing twrp works fine but I get stuck (bootloop) on the screen. Going to normal boot and recovery boot is not possible anymore unless I flash the stock firmware back to my phone.
     
  15. Jfalls63

    Jfalls63 Android Expert

    Not much more advice I can give other than searching every thread at XDA related to SM-G9250 regarding TWRP and root or flashing back to stock. Sorry.
    I gave up on Samsung phones after the S5. To many different models of the same phone makes things to complicated.
     
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  16. MrJavi

    MrJavi Android Expert

    I believe these offer the newest updated TWRP


    https://eu.dl.twrp.me/zerolte/
     
    #16 MrJavi, Jun 8, 2020
    Last edited: Jun 8, 2020
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  17. henk6036

    henk6036 Lurker
    Thread Starter

    Thanks for the link. It seems that these twrp files are newer than the one I used.
    I was able to flash twrp through odin but the moment I was on twrp screen, I couldnt press anything.
    But I couldnt swipe nor click. I saw there was a locked sign
     

    Attached Files:

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  18. MrJavi

    MrJavi Android Expert

    Thats odd, Its been a will since I been on the initial "alow modifications" page but I do remember swiping unlocked. I'm not sure what would be preventing this and its an occurrence I had never know to happen, until now. . Perhaps try flashing the next lower version TWRP.img.tar or even reflashing the same one you already did.

    PS: Is your touch screan fully functional? Yes?
     
    #18 MrJavi, Jun 9, 2020
    Last edited: Jun 9, 2020
  19. henk6036

    henk6036 Lurker
    Thread Starter

    Yes my touch acreen is working since I can still use it in normal mode. I flashed 6.0.1 version and still had the problem where I couldnt slide or click on twrp recovery mode. I dont know what to do...
     
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